U.S. Geological Survey2007GPS data collected for preconstruction hydrographic surveys of Missouri River downstream from Gavins Point Dam near river mile 761.4vector digital dataReston, VAU.S. Geological Surveyhttps://water.usgs.gov/lookup/getspatial?ofr07-1056_dn_pre_gps.shpRyan F. ThompsonMichaela R. JohnsonMichael J. Anderson 2007Data Collected to Support Monitoring of Constructed Emergent Sandbar Habitat on the Missouri River Downstream from Gavins Point Dam, South Dakota and Nebraska 2004-2006publicationU.S. Geological Survey Scientific Investigations Report2007-1056Reston, VAU.S. Geological Surveyhttps://pubs.usgs.gov/of/2007/1056/This data set contains land surface elevations on dry and wadeable portions of transects for pre-construction hydrographic surveys on the Missouri River below Gavins Point Dam for the Emergent Sandbar Habitat construction project near River Mile 761.4. Data tie- ins to local benchmarks also are includedThe purpose of this CD is to provide project files and GIS coverages for Task 1 of the Military Interdepartmental Purchase Request to the U.S. Army Corps of Engineers.2004ground conditionCompleteUnknown-97.230886-96.58233842.96603742.651279NoneinlandWatersHydrographic SurveyNoneMissouri River Below Gavins Point DamnoneThe Missouri River is a dynamic system. Although the elevation data were considered accurate at the time of collection, channel, shore, and highbank areas are unstable and the elevation can be expected to change.U.S. Geological SurveyRyan F. ThompsonHydrologistmailing and physical address111 Kansas Ave SEHuronSD57350605 352-4241 x225rcthomps@usgs.govMicrosoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722Data were collected using Ashtech Z-Extreme real-time kinematic GPS receivers. A local base station was established using two nearby first order benchmarks. The antenna on the base unit was a Geodetic 4 REV A, model number 701975.01. Rove units were checked over a known control point. Antenna heights were measured to the nearest millimeter. GPS data was output using Carlson Software's SurvCE. Antenna height corrections were applied as necessary. Conversion to NGVD29 vertical datum was completed so that the data could be compared to existing COE benchmarks and gaging station data. The datum conversion was accomplished using the National Geodetic Survey's VERTCON program (http://www.ngs.noaa.gov/cgi-bin/VERTCON/vert_con.prl). The datum shift of -0.189 meters was the program output for benchmark U450 (pid NM1968), one of the primaries used to establish local control.Points have been checked and attributedData were collected in NAD83 UTM Zone 14 meters.2004An ArcInfo coverage was generated from a textfile output of the raw data.2004Elevations were collected in NAVD88 and were converted to NGVD29 using VERTCON based on benchmark U450. Attributes for correction, elev_88m, elev_88ft, and elev_29ft were added and populated.2004The coverage was projected to South Dakota-South Stateplane coordinate feet.2004Attributes for x-coord and y-coord were added and populated using ADDXY.2005VectorEntity point33642Point4State Plane Coordinate System400242.83333344.400000-100.33333342.3333332000000.0000000.000000coordinate pair0.0002560.000256survey feetNorth American Datum of 1927Clarke 18666378206.400000294.978698National Geodetic Vertical Datum of 19290.1ftAttribute values
ofr07-1056_dn_pre_gpspoint attribute tableARC/INFO ® GIS SoftwareDESCRIPTIOdescription of pointUSGSdescriptiondescription of pointUSGSELEV_88Mcorrected elevation, NAVD88, meters, calculated by adding elevation and correctionUSGSElev_88mcorrected elevation, NAVD88, meters, calculated by adding elevation and correctionUSGSFIDInternal feature number.ESRISequential unique whole numbers that are automatically generated.ShapeFeature geometry.ESRICoordinates defining the features.AREAArea of feature in internal units squared.ESRIArea is always zero for point coverages. Values are automatically generated.PERIMETERPerimeter of feature in internal units.ESRIPerimeter is always zero for point coverages. Values are automatically generated.OBJECTIDobject identiferUSGSidentifierobject identiferUSGSNORTHINGUTM Zone 14 NAD83 Northing, in metersUSGSNorthingUTM Zone 14 NAD83 Northing, in metersUSGSEASTINGUTM Zone 14 NAD83 Easting, in metersUSGSEastingUTM Zone 14 NAD83 Easting, in metersUSGSCORRECTIONAntenna height correction, if applicable, in metersUSGSCorrectionAntenna height correction, if applicable, in metersUSGSELEVATIONuncorrected point elevationUSGSelevationuncorrected point elevationUSGSELEV_88FTelevation, NAVD88, feet, calculated by multiplying elev_88m by 3.28084USGSElev_88ftelevation, NAVD88, feet, calculated by multiplying elev_88m by 3.28084USGSELEV_29FTElevation, in feet, NGVD29, calculated by subtracting vertcon correction of 0.189 meters from Elev_88m and multiplying by 3.28084USGSelev_29ftElevation, in feet, NGVD29, calculated by subtracting vertcon correction of 0.189 meters from Elev_88m and multiplying by 3.28084USGSDNGPS_SPL_identifierUSGSdngps_spl_identifierUSGSDNGPS_SPL1identifierUSGSdngps_spl1identifierUSGSX_COORDSouth Dakota-South State Plane coordinate easting, in feetUSGSspl_eastingSouth Dakota-South State Plane coordinate easting, in feetUSGSY_COORDSouth Dakota-South state plane coordinate northing, in feetUSGSspl_northingSouth Dakota-South state plane coordinate northing, in feetUSGSU.S. Geological SurveyAsk USGS -- Water Webserver Teammailing address445 National CenterRestonVA20192USA1-888-275-8747 (1-888-ASK-USGS)https://water.usgs.gov/user_feedback_form.htmlDownloadable DataThe South Dakota and Nebraska Water Science Centers, the Water Resources Discipline (WRD) of the U.S. Geological Survey, and the U.S. Army Corps of Engineers make no guarantee nor offer any warranty concerning the accuracy, condition, or application of the information contained in these geographic data.
The burden for determining fitness for use of this data lies entirely with the user. Although these data have been used successfully on computers of WRD, no warranty, expressed or implied, is made by WRD regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.
In no event shall the WRD have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including , but not limited to, any loss of profits arising out of the delivery, installation, operation, or support by WRD.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.ARC SHAPE FILE COMPRESSED0.898https://water.usgs.gov/GIS/dsdl/dn_pre_gps.zipNone20070306U.S. Geological SurveyAsk USGS -- Water Webserver Teammailing address445 National CenterRestonVA20192USA1-888-275-8747 (1-888-ASK-USGS)https://answers.usgs.gov/cgi-bin/gsanswers?pemail=h2oteam&subject=GIS+Dataset+ofr07-1056_dn_pre_gps.shpFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timehttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile